ha(H4): repair key_mismatch, диагностика для ESPHome, reconfigure, переводы

- repairs: issue key_mismatch (ERROR, fixable) при состоянии key_error,
  ConfirmRepairFlow, снятие issue при online/unload/remove
- config flow: async_step_reconfigure (меню, prefill ручной формы,
  unique_id_mismatch, update_reload_and_abort) — путь «перепровижинировать»
- diagnostics: config/esp_home (dsn/lanip_key/key_id/host для secrets.yaml)
  + esp_home_masked и redacted entry_data, runtime-снимок значений
  (raw/display) из кэша ядра
- translations: issues.key_mismatch (title/description/fix_flow) en/ru,
  abort unique_id_mismatch/reconfigure_successful; тест согласованности
  strings↔en↔ru
- FglairClient.events_dropped; mock_ac: параметр key_id в фикстуре
- тесты: diagnostics, repairs issue+fix-flow, reconfigure (успех/чужое
  устройство), translations (45 components)

tests/components/fglair/test_diagnostics.py

@@ -0,0 +1,56 @@
+"""Диагностика: параметры для ESPHome и маскировка ключа."""
+from __future__ import annotations
+
+import asyncio
+import time
+
+from helpers import DSN, LANIP_KEY
+from homeassistant.core import HomeAssistant
+from test_entities import MOCK_SETTINGS, _setup_entry
+
+from custom_components.fglair.diagnostics import (
+    async_get_config_entry_diagnostics,
+)
+from pyfglair import Prop, State
+
+
+async def _wait_for(predicate, timeout: float = 20.0):
+    deadline = time.monotonic() + timeout
+    while time.monotonic() < deadline:
+        result = predicate()
+        if result:
+            return result
+        await asyncio.sleep(0.1)
+    raise AssertionError("условие не выполнено за отведённое время")
+
+
+async def test_diagnostics(hass: HomeAssistant, mock_ac, socket_enabled):
+    proc = mock_ac(MOCK_SETTINGS)
+    entry = await _setup_entry(hass, proc.port)
+    runtime = entry.runtime_data
+    await _wait_for(
+        lambda: runtime.client.state == State.ONLINE
+        and runtime.client.cached(Prop.OPERATION_MODE) is not None
+        and runtime.client.cached(Prop.DISPLAY_TEMPERATURE) is not None
+    )
+
+    diag = await async_get_config_entry_diagnostics(hass, entry)
+    assert diag["config"]["dsn"] == DSN
+    assert diag["config"]["host"] == "127.0.0.1"
+    assert diag["config"]["template"] == "A"
+
+    assert diag["esp_home"]["lanip_key"] == LANIP_KEY
+    assert diag["esp_home"]["lanip_key_id"] == 64201
+    assert diag["esp_home_masked"]["lanip_key"] != LANIP_KEY
+    assert "REDACTED" in diag["esp_home_masked"]["lanip_key"]
+    assert diag["entry_data"]["lanip_key"] == "**REDACTED**"
+
+    assert diag["runtime"]["state"] == "online"
+    assert diag["runtime"]["events_dropped"] == 0
+    assert diag["runtime"]["values"]["operation_mode"]["raw"] == 6
+    assert diag["runtime"]["values"]["operation_mode"]["display"] == 6
+    assert (
+        diag["runtime"]["values"]["display_temperature"]["display"] == 200
+    )
+
+    assert await hass.config_entries.async_unload(entry.entry_id)